cho 2 so a va b biet tong la a+b gap hieu la a-b la 11 lan tim ti so cua a voi b
biet 95% cua mot so la 475 vay mot phan nam cua so do la a 19 b95 c100 d500
cac ban giup minh voi nha minh cam on rat nhieu
tinh 44,5-4,5-3,5-2,5=
tinh a) 25-3,5*1,5= b) 25,7-4,5+1,5*6,12=
tim x biet 3,45-2,5+ x = 1,78 12,3- x +4,5 = 2,3=
tim hieu cua hai so biet rang neu so lon them 15,4 va so be them 7,8 thi duoc hieu hai so moi bang 20,08
cac ban hay giup minh lam chinh xax voi minh can trong chieu hom nay la ngay 19-11-2017 minh cam on cac baqn
cho 2 so A va B biet tong (A+b) gap hieu (A-B) la 11 lan Tim ti so cua voi B
hieu cua hai so thap phan la 39,222 .Tim hai so do ,biet rang neu chuyen dau phay cua so thu nhat sang trai mot chu so thi duoc so thu hai. neu ai biet giup minh voi
A,tim 3/4 cua 240va 1212yen
B,Tim mot so ,biet 3/4 cua no la 240 kg va 1212yen
C,Biet 2/3 cua so M la 150.Tim 1/3cua so M
Co ban nao biet noi dung minh cái nhe!MInh dang gap lam
Tim mot stn A biet trung binh cong cua so A voi 518 la 458
cho A la mot so co hai chu so ,B la tong cac chu so cua A .C la tong cac chua so cua B .tim A biet A=B+C+44
Trung binh cong cua 4,5 ; 4,5 va a la 5,3.Tim a